福建中立恒自动化设备有限公司

目前，世界上有200多个厂家生产可编程序控制器产品，厂家有德国的西门子，美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙，法国的施耐德等。

可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面：

(1)向小型化、专用化、低成本方向发展

20世纪80年代初，小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展，新型器件大幅度的提高功能和降低价格，使PLC结构更为紧凑，功能不断增加，将原来大、中型PLC才有的功能移植到小型PLC上，如模拟量处理、数据通讯和复杂的功能指令等，但价格不断下降，真正成为继电器控制系统的替代产品。

(2)向大容量，高速度方向发展

大型PLC采用多微处理器系统，有的采用32位微处理器，可同时进行多任务操作，处理速度提高，特别是增强了过程控制和数据处理的功能。另外，存储容量大大增加。

(3)与计算机联系密切

从功能上看，PLC不仅能完成逻辑运算，且计算机的复杂运算功能在PLC中也进一步得到利用，从结构上看，计算机的硬件和技术越来越多地应用到PLC；从语言上看，PLC己不再是单纯用梯形图语言，而且可用多种语言编程，如类似计算机汇编语言的语句表，甚至可直接由计算机语言编程；在通讯方面，PLC与计算机可直接相连并进行信息传递。

(4)发展多样化

可编程序控制器发展的多样化体现在3个方面：产品类型、编程语言和应用领域。

(5)模块化

PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态，这使得PLC的系统功能进一步增强，控制系统设计进一步简化。

(6)网络与通讯能力增强

计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强，使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性，致使网络的应用有普遍化的趋势。

(7)多样化与标准化

生产PLC产品的各厂家都在大力度地开发自己的新产品，以求占据市场的更大份额。因此产品向多样化方向发展，出现了欧、美、日多种流派。与此同时，为了推动技术标准化的进程。一些国际性组织，如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准，如对各种类型的产品作一定的归纳或定义，或对PLC未来的发展制定一种方向或框架。

(8)工业软件发展迅速

与可编程序控制器硬件技术的发展相适应，工业软件的发展非常迅速，它使系统应用更加简单易行，大大方便了PLC系统的开发人员和操作使用人员。

可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分：一是与被控设备相连接的接口电路，另一部分是输出的映像寄存器。

PLC运行时CPU从输入映像寄存器读取输入信息并进行处理，将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成，输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出，以驱动电磁阀、接触器、指示灯等被控设备的执行元件。

3111 ALLEN-BRADLEY VERASVIEW 1200M TOUCH PANEL 6186-M12ALTR

28106 APPLIED MATERIALS Manf Pneu Vlv Assy, Spl 16-STATION, 24VDC 4060-01172

L13356 APPLIED MATERIALS SHIELD, AL/TI 8" WAFER 0020-21665

11449 APPLIED MATERIALS LINER, GDP, R2 OXIDE 0020-34694

4436 SPECTRA-PHYSICS POWER SUPPLY T20-8S40-13K

26105 APPLIED MATERIALS FACEPLATE, 70 THK, SACVD, 300MM PRODUCER SE 0041-25016

4397 BROOKS MTR5 Robot Vacutran 5 001-7600-10

4073 LAM RESEARCH LOWER RF ASSEMBLY 853-440656-001-B-3317

C3345 LAM RESEARCH RING, EDGE FOCUS, LOWER CLAMP 716-020904-016

13700 VARIAN FEEDTHROUGH RH E19288020

13701 VARIAN MASS SLIT FEEDTHROUGH, VIISTA, LH E19284880

16981 SEIKO SEIKI TURBOMOLECULAR PUMP CTRL IT 500VA SCU-300C

5753 ASYST ROBOT ARM-2200 ELEVATOR ARM W/ FLEXTRONICS 9700-2971-01

16349 NOVELLUS SIOC C4D SIOC 0 MODULE 03-136528-00 02-252724-00

16345 NOVELLUS SIOC SPEED1 FIELD CONNECTOR MOD P/N: 02-109475-00 02-262491-00

16346 NOVELLUS SIOC C4D SIOC 0 MODULE, P/N: 03-136528-00 02-252724-00

16348 NOVELLUS SIOC C4D SIOC 0 MODULE 03-136528-00 02-157034-00

32492 KOMATSU Heat Exchanger, NE-363C-7, ABBAA00040 NE-363C-7-UC

5822 APPLICATIONS SPECIFIC COMPUTERS Commication Plate W/Sst 5136-PFB

34635 APPLIED MATERIALS FRC 0010-86943

30420 AIR PRODUCTS SCHUMACHER TMP AMPULE 1 LITRE, 2500-1902, 0050-09438 RT9409

14103 APPLIED MATERIALS CENTURA INDEXER MOTOR ASSY, A3723-9215 0010-76317

3309 APPLIED MATERIALS STORAGE ELEVATOR 8 SLOT 17-4 0010-76402

34060 VICOR PS, PFC MEGAPAC, 12.5 - 24VDC, AMAT 1140-00373 MP11-711502-EL

34932 SMC GATE VALVE XGT-0101ASM-X6

19107 CONTROL CONCEPTS SCR POWER CONTROLLER, AMAT 0190-46113 3096-1000A

113 APPLIED MATERIALS REFLECTOR PLATE, INJECT, 300MM RADIANCE PLUS 0041-12156

15716 LAM RESEARCH WATLOW ANAFAZE CONTROL MODULE, Z100-31000-280 778-900046-403

32500 VARIAN Doppelt Arm Roboter Assy E11412800

32756 APPLIED MATERIALS ASSY, FAST LIFT, LMSJB031-01A W/ MOTOR 0190-47647

30184 APPLIED MATERIALS ESC ASSY 200MM FLAT DPS METAL 0195-07994

29859 TOKYO ELECTRON TEMPERATURE CONTROLLER, 3880-200061-11 MODEL-780

28171 VARIAN PLATEN HEATER CONTROLLER, E11455463W E17927810

32214 ASYST TECHNOLOGIES Robot Ctrlr, 12919-002

26628 LAM RESEARCH Lining Top 300MM 715-801021-012

29194 SANYO DENKI AC Servo M W / Daifuku MT-7.2-4.4-002H-1 R2AA08020FXHKC

C1854 LAM RESEARCH ELCTD, BOT, FXD GAP ESC, LOW TEMP 715-330180-002

12574 APPLIED MATERIALS 200MM CASS''T HNDLR BASIC ASSY,MNL FEND,P 0010-03166

22482 VARIAN PCB ASSY, MOTION, CONTROL, PLATEN, TILT E15000202

17707 APPLIED MATERIALS BRG 4PT CONT 8.625OD X 8ID 0190-00958

34071 APPLIED MATERIALS QUANTUM X BEAMLINE ELECTROMAGNET PS PARTS 9090-00945

14829 APPLIED MATERIALS LID,PUMPING PLATE,TEAOS,GIGA-FILL SACVD 0040-32449

17108 OLYMPUS CX41 Upright Microscope CX41RF

20457 JULABO RECIRCULATING COOLER FL300

12445 APPLIED MATERIALS AMPULE CHAMBER ASSY 0010-09222

27968 APPLIED MATERIALS Pumps Plate Afeol 300MM 0040-82011

21129 TOKYO ELECTRON COVER RING, OUTER SCCM-OX) ES1805-320126-11

12446 APPLIED MATERIALS AMPULE CHAMBER ASSY 0010-09222

29666 APPLIED MATERIALS ASSY, INT, ISRM MOD FULL SCAN 0100-77003

15538 LAM RESEARCH ETCH PROCESS CHUCK,10" 715-11665-006

35135 PANASONIC AC SERVO DRIVER DV85018HA502

12081 YOKOGAWA DIGITAL POWER METER WT310HC

12443 APPLIED MATERIALS AMPULE/CHAMBER ASSY, TEOS W/ COVER 0010-09331

31748 VIPA CPU MODULE, PROFIBUS-DP MASTER, CPU317SE 317-2AJ12

7182 NOVELLUS Electrostatic Chuck, 15-118976-00, 02-134263-01 02-134263-00

29879 ZYGO LASER HEAD, 7712 8070-0159-02X

29880 ZYGO LASER HEAD, 7712 8070-0159-02

13946 APPLIED MATERIALS MAG DRIVER 50A 2-CHANNEL KOLLMORGEN 0190-03554

34104 VARIAN ANALOG/DIGITAL I/O INTERFACE MODULE E11095112

32115 OMRON STI SAFETY LASER SCANNER W/ I/O BLOCK 0S32C-SP1 OS32C-SN-4M

32413 BIRD DIRECTIONAL POWER SENSOR, 400-550KHZ, 12000W 4027A400K

26980 NOVELLUS MODULE CONTROLLER, MC, W8, RS232, P166/64MEGBE 02-105005-00

35201 LAM RESEARCH PCB, WATLOW ANAFAZE, Z100-31000-000 778-900046-001

34234 APPLIED MATERIALS CT' HV MODULE ASSY. 5KV, CESC 0010-16690

34122 AMETEK ZYGO LASER HEAD, ZMI 7705 8070-0902-13X

34121 AMETEK ZYGO LASER HEAD, ZMI 7705 8070-0902-13

4546 LEYBOLD TURBOVAC TW700 W/ CONVERTER TW700 W-TDL 800051V0003

28180 APPLIED MATERIALS MKS Plus 4-PORT, Upa, 300MM Refl 0190-24854

33558 APPLIED MATERIALS PCB ASSY, RADISYS VGA VIDEO CTLR, 61-0880-31 0190-00318

24554 APPLIED MATERIALS Semitool Ring Gasket 300X2.70MM RP11NSP 213T0988-11

24847 LAM RESEARCH PCB, JTS GB WITH HE  SIH4 CONNECTOR BD 810-073479-306

34233 APPLIED MATERIALS HV MODULE ASSY, NEGATIVE, CESC 0010-04926

C3410 PORT KENSINGTON PCB ASSY, DOOR OPENER I/O 35-3000-0050-10

11799 KLA-TENCOR VIP IMAGE PROCESSOR VME TEL CARD BOARD 770-809195-000

34182 NOVELLUS PCB, GEN 3, FE INTF PCB, C3VCTR 03-425607-00

25737 APPLIED MATERIALS VERITY EYED CTLR SPECTROGRAPH,1007467 0190-28658

32958 NOVELLUS HDSIOC 1 SBR-XT BATH-A72 02-345098-00

7160 NOVELLUS CHAMBER COVER W/ PHOTOELECTRIC SWITCH 15-257176-02

7667 NOVELLUS CHAMBER COVER W/ PHOTOELECTRIC SWITCH(E3S-AT66-D) 15-257176-01

13953 APPLIED MATERIALS ASSY FILTER  300MM HART 0090-03857

T410 MKS BARATRON CAPACITANCE MANOMETER, 1 MBAR 627F01MCC9B

26977 NOVELLUS ASSY, MOD CNTRL, P166, 24V 02-103970-00

L18561 LAM RESEARCH BICEP ESC PS PCB 810-495659-006

32888 WATERS Assy, PCB, Prep Pumpe 2545 210000365

33648 FUJIFILM TEMP CTLR W/ TEMP CTRL BUBBLER, P/N: 935053 TC2000RM-CH

35903 AERO BRAZING PLASMA APPLICATOR PRSP, AMAT 0190-09227 DPA23C

14885 APPLIED MATERIALS CNTRL DUAL ZPHASE ANGLE 0500-01139

29720 BIRD DIRECTIONAL POWER SENSOR, 1.5-2.5MHZ, 3W-10kW 4027A2M

16136 APPLIED MATERIALS ASSY A.L.L.MOTOR LEFT, VEXTA MOTOR A3723-9215 0010-76430

20945 HITECH DURA SERIES WATER PURIFICATION SYSTEM DURA 12

29699 APPLIED MATERIALS ASSY, SYSTEM ELECTRONICS MODULE, EPI 300 0010-17730

9777 BROOKS MTR1 ROBOT VACUTRAN W/O COVER, VTR-4 11501-82

33 APPLIED MATERIALS PCB ROTATION DRIVE 0100-00899

12842 APPLIED MATERIALS ENDURA 402902-1 300MM PVD SOURCE CHAMBER TOP 0010-14529

31312 LAM RESEARCH CONTROLLER ASSY, EIOC 1 VXL 61-422697-00

15763 LAM RESEARCH 2300 FLEX EX® PROCESS MODULE, 575-800325-417 FLEX™ EXPM

32498 APPLIED MATERIALS ASSY, SHIELDLESS BELLOWS ACP CD INDEXER 0040-99720

34279 APPLIED MATERIALS MEI EXMP,8 AXIS MOTION CTLR,T008-2001 0190-13990

26065 APPLIED MATERIALS PLATE, GAS DISTRIBUTION, TXZ 300MM CVD 0041-31335

28009 APPLIED MATERIALS Isrm Modul Assy, 0100-02812, 0100-02167 0010-46418

C2226 DNS DAI NIPPON SCREEN PCB, INDEXER CTRL BD, AP-1032C, IGL2017A CEDB-1013

C2228 DNS DAI NIPPON SCREEN PCB, TRANSPORT BD, AP-1032C, MDD1005A CERB-0016X2

28305 MOTOROLA PCB, MVME 3100 01-W3893F02C

29338 VAT Schlitz Ventil Assy, Amat 3870-02872 0340X-CA24-BFP1

1869 APPLIED MATERIALS EMC COMP. CABLE ASSY MAIN FRAME UMBILIC 40FT. 0150-76208

32284 JAE Hct Tel Panel Touchscreen UT5-TLN16-B

28020 TRAZAR ELECTROSTATIC CHUCK CTLR, 62683-001, NOVELLUS 27-285547-00 ECC3-2

3497 APPLIED MATERIALS ASSY UPPER HIGED DOOR CENTER 0010-65653

29812 APPLIED MATERIALS DRIVE ASSY, SWLL INDEXER, ENHANCED 0010-22773

32030 APPLIED MATERIALS 4-PORT Upa, 300MM TRUCK REFLECTION 0190-15840

31311 LAM RESEARCH CONTROLLER ASSY, EIOC 4 685-283373-001

23189 LUDL ELECTRONIC MAC22 19" ENCLOSURE INTERFACE MODULE 73002005

31313 LAM RESEARCH ASSY, STRIKER CARBIDE CK, LAMCAT NODE 2 853-252747-006

21153 TEL RDS W/O CABLE TARC COMPATIBLE RTNRGEN  113017  CT2911-000003R13

23651 FEI DDL DETECTOR 5322 695 16148

21863 TEL QTZ BASE RING INTEGRATED(D260)  1805-320127-21

32328 MOTOROLA PCB Assy, Mvme 162-031 W/01-W3973B01A 01-W3884B17E

32508 LAM RESEARCH PCB, Single Plate Computer, V7668A-132L00W02 605-064676-008

25833 APPLIED MATERIALS RACE, LOWER,BEARING, UPPER ROTATION, RTP 0020-39361

32288 APPLIED MATERIALS Sonde Halterg Assy Saphire- Für Scheibe 0190-18430

21926 APPLIED MATERIALS ASSY INT ISRM MOD FULL SCAN 0010-04514

25684 APPLIED MATERIALS BLADE, 300MM PRODUCER GT TI-DOPED CERAMIC  0200-07302

358 LEYBOLD TURBOVAC PUMP TW 700 160 ISO-K 50163148 800051V0005

8098 APPLIED MATERIALS PCB Seriplex I/O Distribution 0100-35231

27433 APPLIED MATERIALS PLATE, REFLECTOR, 200MM XE, CORROSION RE 0021-03721

35908 LAM RESEARCH ASSY, STRIKER CARBIDE CK, LAMCAT NODE 0 853-252743-006

29310 APPLIED MATERIALS Top Coil, 300MM Ultima Plus 0040-41964

5822 APPLICATIONS SPECIFIC COMPUTERS COMMICATION BOARD W/ SST 5136-PFB 243-003

31315 LAM RESEARCH ASSY, ATLUS LAMCAT NODE 2 853-252740-003

31309 LAM RESEARCH CONTROLLER ASSY, HDSIOC 3 POST PLATE 685-332604-001

33875 ZYGO LASER HEAD 6MM, 8070-0102-01 7702